The baby’s sleep is not solid at night, consider the following possible causes: 1, the surrounding environment may not be suitable for the baby, such as the weather is too dry or too high or too low, may affect the child’s sleep caused by the child sleep at night, so the child sleep in the surrounding environment as far as possible to control the appropriate temperature and humidity between the cover at night to moderate the clothing, not too thin or too thick. 2, the baby may have calcium deficiency, when the child is deficient in calcium can appear easy to startle, night sweating, this situation can let the child appropriate more sunshine, can supplement vitamin AD, if calcium deficiency is obvious can also take oral calcium treatment. 3, if the baby has intestinal parasite infection can appear easy to wake up at night, crying, this situation should pay attention to see whether the child’s stool has The baby may wake up easily at night and cry.